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More optblocker usage

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This commit is contained in:
Frank Denis 2024-10-23 18:54:54 +02:00
parent b1f9c53875
commit d6dd9c3ce0
1 changed files with 2 additions and 5 deletions
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7
src/libsodium/crypto_core/ed25519/ref10/ed25519_ref10.c
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@ -618,12 +618,9 @@ equal(signed char b, signed char c)
static unsigned char static unsigned char
negative(signed char b) negative(signed char b)
{ {
/* 18446744073709551361..18446744073709551615: yes; 0..255: no */ const uint8_t x = (uint8_t) b; /* 0..127: no 128..255: yes */
uint64_t x = b;
x >>= 63; /* 1: yes; 0: no */ return ((x >> 5) ^ optblocker_u8) >> 2; /* 1: yes; 0: no */
return x;
} }
static void static void